I would like to put in a request for RSA SecurID integration within 1Password. I found a couple of forum threads from 2011 discussing TOTP where RSA SecurID was mentioned but not much more.
Your developers would need to use the SecurID SDK to receive the OTP tokencode. RSA offers the SDKs for free and they are available for Mac, Windows, iOS, and Android. They also offer a free trial of the SecurID token system.
I'm using the SDK now on my Mac and it is working but it is not very secure and is a multi-step process that can fail (keyboard macro utility calls a bash script that runs a process to collect the PIN from my keychain, sends the PIN to the SecurID process, receives the tokencode, creates an Applescript string with the tokencode as keypress codes, then calls osascript to run the script string as AppleEvents). As you can imagine, having all of this done by 1P would be so much better.
One drawback is that the Token Storage Device (the SecurID internal database) which is encoded with details of the system, like hostname, disk storage location, user account unique ID, etc. therefore it is tied to a specific device and most companies don't authorize multiple tokens for an employee to be used on multiple devices. This would mean that even though 1P is available on multiple devices for a user, it would only generate the proper code when 1P is used on the specific device.
An option to look into, and you might have to work directly with RSA for this, is to have the ability of the Token Storage Device (the SecurID internal database) be created within the 1P vault instead of on the device's file system. This would allow the token to be used by any 1P application.
1Password Version: 6.1
Extension Version: Not Provided
OS Version: OS X 10.11.6, iOS 9.3.4, Windows 7
Sync Type: Not Provided